Oil filta em i wanpela bikpela hap bilong ensin bilong ka, ol i save yusim bilong filterim ol pipia insait long oil na lukim olsem ensin i klin insait, na long dispela rot em i skruim sevis laip bilong em.
Ol doti pipia
Rausim ol pipia bilong ain, das, kabon diposit na ol narapela samting i doti long oil bilong pasim ol long rausim ol hap bilong ensin.
Mentenim lubrikesen ifek
Klin oil inap tru long grisim insait bilong ensin (olsem ol piston na krenksef), daunim friksen na hatim tumas.
Ekstend enjin laip
Abrusim ol pipia long pasim oil seket o skrapim ol hap i stret, na dispela i daunim hevi bilong feil.
Bikpela straksa
King: metal o plastik samting, lukautim intanel filta element.
Ol samting bilong filta: planti pepa o sintetik faiba ol i save foldim, ol i save yusim bilong kisim ol liklik hap samting.
Jekem valv: i blokem oel bakflo long taem blong satdaon mo i mekem sua se presa blong oel i kamaot kwiktaem long taem blong statap.
Bypass valv (sefti valv): i save op otomatik taim ol i pasim filta samting, na dispela i mekim na oil i no gat filta inap raun inap sotpela taim bilong abrusim pasin bilong kisim oil bilong ensin bilong ensin.
Wokim as tingting
Oil pam i save givim oil i go long filta, we ol pipia i save go insait long filta samting.
Klinpela oil i save ron i go long ol kain kain hap bilong ensin.
Extreme case olsem: Sapos filta samting i pas, baipas valv i op long lukim olsem oil i go het long ron (tasol ol pipia i no save filterim long dispela taim).